Research Article

Application of HPLC for the Simultaneous Determination of Paracetamol, Chlorzoxazone, and Nimesulide in Pharmaceutical Dosage Form

Table 1

Linear regression data for calibration curves ( ).

Parameters PCM CHZNIM

Linearity range ( g mL−1)32.5–65.0 37.5–75.0 10.0–20.0
Slope ± standard error37777 ± 509.8 19922 ± 308.723690 ± 292.3
Intercept ± standard error−51075 ± 25490 −33423 ± 17810 −10637 ± 4497
Confidence limit of slopea36360 to 39190 19060 to 2078022880 to 24500
Confidence limit of intercepta−58150 to −44000 −38370 to −28480 −11890 to −9389
0.9993 0.9990 0.9994
13860 9687 2446

a95% confidence intervals.
bStandard deviation of residuals from line.